Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a9b8f77c5c5734c…

MALICIOUS

PDF

184.1 KB Created: 2015-08-05 16:42:50 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: aad298ab0e4680ea71e510d2856cd065 SHA-1: b920f93624adb46cdafe8c77056e5736283cea41 SHA-256: 6a9b8f77c5c5734c5af2ba27eca5402b9e73fdf9d6284f3a16edf90f540d2e80
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is highly suspicious and likely serves as a lure to a malicious site. No scripts were extracted, but the presence of the malicious link strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://botcraftman.ru/?lip&keyword=%D1%81%D0%B8%D0%BC%D1%83%D0%BB%D1%8F%D1%82%D0%BE%D1%80+%D1%82%D0%B5%D0%BD%D0%BD%D0%B8%D1%81%D0%B0+%D0%BD%D0%B0+pc&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305280_kartuy_na_maynkraft_181.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304674_programma_avtokad_2010_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304555_skachat_besplatno_installapk.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023e9a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E9A 3556 bytes
font_01_sfnt_off00024c1d.bin
05068d9a87e0e4941b4630887a7697ff0bb99285e9f0153359d09a7b3af3312f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C1D 14616 bytes
font_02_sfnt_off00027979.bin
8c332c8ba43e1e4d477b5ac04c2f1727d96aa39934340002d6bc871fa1f61306		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27979 14468 bytes
font_03_sfnt_off0002a428.bin
4b94c17418b1f9e2886b171ceef020f0e6e16348aca3b44e9b213fe786782288		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A428 6500 bytes
font_04_sfnt_off0002b6b2.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6B2 6084 bytes
font_05_sfnt_off0002c647.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C647 3752 bytes

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